Open Redirect in B2evolution
CVE-2020-22840
Open redirect vulnerability in b2evolution CMS version prior to 6.11.6 allows an attacker to perform malicious open redirects to an attacker controlled resource via redirect_to parameter in email_passthrough.php.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.138 (96.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.138 · newest: 0.138 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/b2evolution/b2evolution/issues/102 (Third Party Advisory)
- packetstormsecurity.com/files/161362/b2evolution-CMS-6.11.6-Open-Redirection.ht… (Exploit, VDB Entry, Third Party Advisory)
- www.exploit-db.com/exploits/49554 (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-22840?
- CVE-2020-22840 is a medium-severity vulnerability in B2evolution, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2021-02-09.
- How severe is CVE-2020-22840?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2020-22840 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.